我們進行CSS網頁佈局的時候，都知道它需要符合XHTML1.0規範，在VeVb.com昨天的文章中，向大家介紹了DTD。如果我們在進行CSS網頁佈局的時候，還在使用被W3C廢棄的元素，那就失去了使用CSS的意義，雖然它們可能同樣被樣式控制。
在XHTML中不再使用HTML中的一些廢棄元素。它們主要有以下一些。
ElementsandattributesthathavebeendeprecatedinthemostrecentversionofXHTML,XHTML1.0.
Elements <applet></applet>Theappletelementhasbeendeprecatedinfavorof<object></object>.
<basefont/>Thebasefontelementhasbeendeprecatedinfavorofstylesheets.
<blackface></blackface>TheblackfaceelementisaWebTV(MSNTV)elementthathasbeendeprecatedinfavorofstylesheets.
<blockquote></blockquote>Theblockquoteelementisdeprecatedinfavorofstylesheetswhenusedtoindenttext.
<center></center>Thecenterelementhasbeendeprecatedinfavorofstylesheets.
<dir></dir>Thedirelementhasbeendeprecatedinfavorof<ul></ul>.
<embed/>Theembedelementhasbeendeprecatedinfavorof<object></object>.
<font></font>Thefontelementhasbeendeprecatedinfavorofstylesheets.
<i></i>Theielementhasbeendeprecatedinfavorofstylesheets.
<isindex/>TheisindexelementhasbeendeprecatedinfavoroftheinputelementandCGIforms.
<layer></layer>Thelayerelementhasbeendeprecatedinfavorofstylesheets.
<menu></menu>Themenuelementhasbeendeprecatedinfavorof<ul></ul>.
<noembed></noembed>Thenoembedelementhasbeendeprecatedinfavorof<object></object>.
<s></s>Theselementhasbeendeprecatedinfavorofstylesheets.
<shadow></shadow>Theshadowelementhasbeendeprecatedinfavorofstylesheets.
<strike></strike>Thestrikeelementhasbeendeprecatedinfavorofstylesheets.
<u></u>Thestrikeelementhasbeendeprecatedinfavorofstylesheets.
Attributes alinkThealinkattributedefinesthecolorofanactivelinkontheWebpage.Ithasbeendeprecatedinfavorofstylesheets.
alignUsedtoalignelementsverticallyandhorizontallyonthedocumentpage,thealignattributehasbeendeprecatedinfavorofstylesheets.
backgroundThebackgroundattributeisusedtodefineabackgroundimagefortheelement.Ithasbeendeprecatedinfavorofstylesheets.
borderUsedtodefineaborderaroundtheelement,theborderattributehasbeendeprecatedinfavorofstylesheets.
colorUsedtodefinethecoloroftheenclosedtext,thecolorattributehasbeendeprecatedinfavorofstylesheets.
compactThecompactattributeisusedinlisttagstocreatealistthattakesuplessspace.Ithasbeendeprecatedinfavorofstylesheets.
faceUsedtodefinethefontfaceoftheenclosedtext,thefaceattributehasbeendeprecatedinfavorofstylesheets.
heightUsedtodefinetheheightoftheelement,theheightattributehasbeendeprecatedinfavorofstylesheets.
languageThelanguageattributeisusedtodefinethelanguageusedbythescriptelement.Ithasbeendeprecatedinfavorofthetypeattribute.
linkThelinkattributedefinesthecolorofalinkontheWebpage.Ithasbeendeprecatedinfavorofstylesheets.
nameThenameattributenamestheelementforusewithdynamiccontent,ithasbeendeprecatedinfavoroftheidattribute.
noshadeThenoshadeattributeremovesthe3-Deffectfromhorizontalrules.Ithasbeendeprecatedinfavorofstylesheets.
nowrapUsedtostoptablecontentsfromwrapping,thenowrapattributehasbeendeprecatedinfavorofstylesheets.
sizeUsedtodefinethesizeoftheenclosedtext,thesizeattributehasbeendeprecatedinfavorofstylesheets.
startThestartattributeoflisttagsdefinesthestartingnumberofthelist.Thisattributehasbeendeprecatedinfavorofstylesheets.
textThetextattributedefinesthecolorofthetextontheWebpage.Ithasbeendeprecatedinfavorofstylesheets.
typeThetypeattributeoflisttagsdefineswhattypeoflistshouldbeused.Thisattributehasbeendeprecatedinfavorofstylesheets.
valueThevalueattributeoflisttagssetsthevalueofthelistitem.Thisattributehasbeendeprecatedinfavorofstylesheets.
versionTheversionattributedefinestheversionofHTMLusedbythedocument.IthasbeendeprecatedinfavorofDTDs.
vlinkThevlinkattributedefinesthecolorofavisitedlinkontheWebpage.Ithasbeendeprecatedinfavorofstylesheets.
widthThewidthattributedefinesthewidthinpixelsoftheelement.Ithasbeendeprecatedinfavorofstylesheets.